Adapt the assembler to the changes on the parser

As of 184c39579227 ("Re-work the parser from scratch") the parser has a
proper AST, and the assembler has to traverse it accordingly.

Moreover, the assembler has been stripped from a lot of unneeded memory
allocations and it's overall more keen on using mere references when
possible.

Signed-off-by: Miquel Sabaté Solà <mikisabate@gmail.com>

1 files changed, 11 insertions, 14 deletions

diff --git a/lib/xixanta/src/mapping.rs b/lib/xixanta/src/mapping.rs
index 231883f..9d313a5 100644
--- a/lib/xixanta/src/mapping.rs
+++ b/lib/xixanta/src/mapping.rs
@@ -1,9 +1,3 @@
-use crate::instruction::{Fill, Node, PString};
-use std::collections::HashMap;
-
-use crate::errors::ParseError;
-type Result<T> = std::result::Result<T, ParseError>;
-
 lazy_static! {
     pub static ref EMPTY: Vec<Segment> = vec![Segment {
         name: String::from("CODE"),
@@ -16,25 +10,25 @@ lazy_static! {
             name: String::from("HEADER"),
             start: 0x0000,
             size: 0x0010,
-            fill: Some(Fill { value: 0x00 }),
+            fill: Some(0x00),
         },
         Segment {
             name: String::from("VECTORS"),
             start: 0xFFFA,
             size: 0x0006,
-            fill: Some(Fill { value: 0x00 }),
+            fill: Some(0x00),
         },
         Segment {
             name: String::from("CODE"),
             start: 0x8000,
             size: 0x7FFA,
-            fill: Some(Fill { value: 0x00 }),
+            fill: Some(0x00),
         },
         Segment {
             name: String::from("CHARS"),
             start: 0x0000,
             size: 0x2000,
-            fill: Some(Fill { value: 0x00 }),
+            fill: Some(0x00),
         }
     ];
 }
@@ -44,9 +38,10 @@ pub struct Segment {
     pub name: String,
     pub start: u16,
     pub size: usize,
-    pub fill: Option<Fill>,
+    pub fill: Option<usize>,
 }
 
+/* TODO
 #[derive(Debug)]
 pub struct Mapping {
     pub segments: Vec<Segment>,
@@ -90,9 +85,10 @@ impl Mapping {
 
     pub fn switch(&mut self, id: &PString) -> Result<()> {
         if !self.nodes.contains_key(&id.value) {
-            return Err(
-                id.parser_error(format!("segment '{}' has not been defined", id.value).as_str())
-            );
+            // TODO
+            // return Err(
+            //     id.parser_error(format!("segment '{}' has not been defined", id.value).as_str())
+            // );
         }
 
         id.value.clone_into(&mut self.current);
@@ -114,3 +110,4 @@ impl Mapping {
         }
     }
 }
+*/